Title :
Power optimization of OFDM systems with dc bias controlled nonlinear amplifiers
Author :
Jong, Je-Hong ; Yang, Kyounghoon ; Stark, Wayne E. ; Haddad, George I.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
In this paper, we propose an objective function for optimizing the power consumption of communication systems with nonlinear power amplifiers. With the proposed measure, a methodology is presented to optimise the power consumption with a general class of amplifiers, including adaptive dc bias controlled amplifiers. Furthermore, power consumption of a highly nonconstant envelope modulation scheme, orthogonal frequency division multiplexing (OFDM), is evaluated and optimized
Keywords :
OFDM modulation; optimisation; power amplifiers; OFDM systems; adaptive dc bias controlled amplifiers; dc bias controlled nonlinear amplifiers; nonconstant envelope modulation scheme; nonlinear power amplifiers; objective function; orthogonal frequency division multiplexing; power consumption; power optimization; Adaptive control; Communication system control; Control systems; Energy consumption; Frequency modulation; OFDM; Optimization methods; Power amplifiers; Power measurement; Programmable control;
Conference_Titel :
Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-5435-4
DOI :
10.1109/VETECF.1999.797137
